The Schneider Electric LX1FX300 is a contactor coil from the TeSys range, designed to replace the coil in LX1F contactors. It operates on a 300 V AC control circuit at 50/60 Hz, with no built-in suppressor module — meaning an external RC snubber or varistor must be added across the coil terminals if the application requires surge suppression for the control circuit.
Rated for 300 V AC control voltage at 50/60 Hz, so it matches line-voltage control schemes common in North American and European panels — no step-down transformer needed if the panel runs 277/480 V with a 300 V control tap. Mechanical durability is rated at 5 million cycles, which for a contactor coil translates to roughly 500,000 operations per year at a 10% duty cycle over a decade — adequate for most conveyor, pump, and fan applications that cycle a few times per hour. Maximum operating rate is 600 cycles per hour at 55 °C, meaning the coil can be energized and de-energized every 6 seconds continuously at that ambient temperature without overheating.
Deployment Context
The absence of a built-in suppressor means the installer must add an external suppression device if the control circuit drives inductive loads (like PLC relay outputs) that need protection from the coil's back-EMF.